论文标题

Borel套件没有完美的重叠翻译,III

Borel sets without perfectly many overlapping translations, III

论文作者

Roslanowski, Andrzej, Shelah, Saharon

论文摘要

我们将Roslanowski和Shelah Arxive的结果扩展到1806.06283,Arxive:1909.00937至所有完美的Abelian Polish Groups $(H,+)$。特别是,我们表明,如果$α<ω_1$和$ 4 \ leq k <ω$,那么CCC强迫添加$σ^0_2 $ set $ b \ subseteq h $具有$ \aleph_α$aleph_α$aleph_α$许多成对$ k $ - 重叠的翻译,但不是完美的翻译。

We expand the results of Roslanowski and Shelah arXive:1806.06283 , arXive:1909.00937 to all perfect Abelian Polish groups $(H,+)$. In particular, we show that if $α<ω_1$ and $4\leq k<ω$, then there is a ccc forcing notion adding a $Σ^0_2$ set $B\subseteq H$ which has $\aleph_α$ many pairwise $k$--overlapping translations but not a perfect set of such translations.

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